Periodic Check Charging System plus Dash Lights
#1
Periodic Check Charging System plus Dash Lights
I have found a forum with a similar issue to what I am having except it was never responded to after the solution. I have a 2006 mustang gt with KNN CAI and Diablo Sport Predetor tuner. About a year ago, I was driving from back from Ohio to Wisconsin and noticed a "check charging sytem" message on the dash. There weren't many other symtoms. I stopped at a garage and it was charging only about 12.5 volts at an idle. I chose not to replace the alternator since it wasn't losing volts and was consistant. I made it back to Wisconsin and had very little (if any) issues for almost a year. This summer I have notice check charging system light coming on periodicially. Next, I noticed my fog lights would turn OFF for about 10 seconds along with dash lights coming ON for about 10 seconds. This would happen and go away for about a day or two. Now it seems to be happening more often. I am not going to drive it until I figure out what it is. Anyone who had the same or very similar problems please let me know a fix! I don't mind buying a part to fix it, but I don't want to throw money away if it is not the correct part.
THANK YOU!!
THANK YOU!!
#2
6th Gear Member
Replace the chronically marginal alternator with a PA Performance alt. These S197's have chronic issues with the alt and battery. One will take out the other.
12.5 volts alternator output at idle is a sure sign of a weak alternator. It should be about 13.2 volts, often higher.
12.5 volts alternator output at idle is a sure sign of a weak alternator. It should be about 13.2 volts, often higher.
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bond007
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08-26-2015 11:36 PM